1165260771 has 12 divisors (see below), whose sum is σ = 1683536400. Its totient is φ = 776664240.

The previous prime is 1165260749. The next prime is 1165260773. The reversal of 1165260771 is 1770625611.

It is not a de Polignac number, because 1165260771 - 2⁹ = 1165260259 is a prime.

It is a super-3 number, since 3×1165260771³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1165260773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36601 + ... + 60581.

It is an arithmetic number, because the mean of its divisors is an integer number (140294700).

Almost surely, 2^1165260771 is an apocalyptic number.

1165260771 is a deficient number, since it is larger than the sum of its proper divisors (518275629).

1165260771 is a wasteful number, since it uses less digits than its factorization.

1165260771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29386 (or 29383 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1165260771 is about 34135.9161441435. The cubic root of 1165260771 is about 1052.3035657050.

The spelling of 1165260771 in words is "one billion, one hundred sixty-five million, two hundred sixty thousand, seven hundred seventy-one".